01 - Boil ramen noodles in a large saucepan until just tender, about 2 to 3 minutes. Drain thoroughly and set aside.
02 - In a separate skillet, heat olive oil over medium heat. Add minced garlic and sauté for 1 minute until fragrant. Add butter, then stir in flour to create a roux; cook for 1 minute. Gradually whisk in milk and simmer, stirring constantly, until the sauce thickens. Fold in Parmesan, season with salt and black pepper, and remove from heat.
03 - In a large mixing bowl, combine the drained ramen noodles, shredded chicken, and warm garlic-Parmesan sauce. Toss thoroughly to coat the noodles and chicken evenly.
04 - Lightly grease a baking dish. Transfer the ramen mixture into the dish. In a small bowl, mix together panko breadcrumbs and olive oil or melted butter. Evenly sprinkle the panko mixture over the top.
05 - Bake in a preheated oven at 375°F (190°C) for 20 to 25 minutes, until the topping is golden brown and the filling is bubbling. Remove from oven and sprinkle with chopped parsley before serving, if desired.